US-specific pro-immigration arguments

There are a number of arguments in favor of immigration that specifically apply to the United States of America. Note that the overallcase for open borders is universal employs fairly country-independent arguments. Thus, these US-specific arguments can be thought of as additional arguments that support free migration into the United States, over and above the general case.

With this policy of open borders, the United States expanded greatly in population and led the world in terms of increases in its standard of living and increases in per capita income. This historical success lends support to the idea that assimilating new waves of immigrants will be possible for the United States and will lead to greater prosperity for the nation.